FlatButtonAppearance.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / FlatButtonAppearance.cs / 1 / FlatButtonAppearance.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Windows.Forms { 
    using System; 
    using System.Drawing;
    using System.Globalization; 
    using System.ComponentModel;
    using System.Windows.Forms.Layout;

    ///  
    /// 
    ///  
    [TypeConverter(typeof(FlatButtonAppearanceConverter))] 
    public class FlatButtonAppearance {
 
        private ButtonBase owner;

        private int   borderSize         = 1;
        private Color borderColor        = Color.Empty; 
        private Color checkedBackColor   = Color.Empty;
        private Color mouseDownBackColor = Color.Empty; 
        private Color mouseOverBackColor = Color.Empty; 

        internal FlatButtonAppearance(ButtonBase owner) { 
            this.owner = owner;
        }

        ///  
        /// 
        ///     For buttons whose FlatStyle is FlatStyle.Flat, this property specifies the size, in pixels of the border around the button. 
        ///  
        [
        Browsable(true), 
        ApplicableToButton(),
        NotifyParentProperty(true),
        SRCategory(SR.CatAppearance),
        SRDescription(SR.ButtonBorderSizeDescr), 
        EditorBrowsable(EditorBrowsableState.Always),
        DefaultValue(1), 
        ] 
        public int BorderSize {
            get { 
                return borderSize;
            }
            set {
                if (value < 0) 
                    throw new ArgumentOutOfRangeException("BorderSize", value, SR.GetString(SR.InvalidLowBoundArgumentEx, "BorderSize", value.ToString(CultureInfo.CurrentCulture), (0).ToString(CultureInfo.CurrentCulture)));
 
                if (borderSize != value) { 
                    borderSize = value;
                    if (owner != null && owner.ParentInternal != null) { 
                        LayoutTransaction.DoLayoutIf(owner.AutoSize, owner.ParentInternal, owner, PropertyNames.FlatAppearanceBorderSize);
                    }
                    owner.Invalidate();
                } 
            }
        } 
 
        /// 
        ///  
        ///     For buttons whose FlatStyle is FlatStyle.Flat, this property specifies the color of the border around the button.
        /// 
        [
        Browsable(true), 
        ApplicableToButton(),
        NotifyParentProperty(true), 
        SRCategory(SR.CatAppearance), 
        SRDescription(SR.ButtonBorderColorDescr),
        EditorBrowsable(EditorBrowsableState.Always), 
        DefaultValue(typeof(Color), ""),
        ]
        public Color BorderColor {
            get { 
                return borderColor;
            } 
            set { 
                if (value.Equals(Color.Transparent)) {
                    throw new NotSupportedException(SR.GetString(SR.ButtonFlatAppearanceInvalidBorderColor)); 
                }

                if (borderColor != value) {
                    borderColor = value; 
                    owner.Invalidate();
                } 
            } 
        }
 
        /// 
        /// 
        ///     For buttons whose FlatStyle is FlatStyle.Flat, this property specifies the color of the client area
        ///     of the button when the button state is checked and the mouse cursor is NOT within the bounds of the control. 
        /// 
        [ 
        Browsable(true), 
        NotifyParentProperty(true),
        SRCategory(SR.CatAppearance), 
        SRDescription(SR.ButtonCheckedBackColorDescr),
        EditorBrowsable(EditorBrowsableState.Always),
        DefaultValue(typeof(Color), ""),
        ] 
        public Color CheckedBackColor {
            get { 
                return checkedBackColor; 
            }
            set { 
                if (checkedBackColor != value) {
                    checkedBackColor = value;
                    owner.Invalidate();
                } 
            }
        } 
 
        /// 
        ///  
        ///     For buttons whose FlatStyle is FlatStyle.Flat, this property specifies the color of the client area
        ///     of the button when the mouse cursor is within the bounds of the control and the left button is pressed.
        /// 
        [ 
        Browsable(true),
        ApplicableToButton(), 
        NotifyParentProperty(true), 
        SRCategory(SR.CatAppearance),
        SRDescription(SR.ButtonMouseDownBackColorDescr), 
        EditorBrowsable(EditorBrowsableState.Always),
        DefaultValue(typeof(Color), ""),
        ]
        public Color MouseDownBackColor { 
            get {
                return mouseDownBackColor; 
            } 
            set {
                if (mouseDownBackColor != value) { 
                    mouseDownBackColor = value;
                    owner.Invalidate();
                }
            } 
        }
 
        ///  
        /// 
        ///     For buttons whose FlatStyle is FlatStyle.Flat, this property specifies the color of the client 
        ///     area of the button when the mouse cursor is within the bounds of the control.
        /// 
        [
        Browsable(true), 
        ApplicableToButton(),
        NotifyParentProperty(true), 
        SRCategory(SR.CatAppearance), 
        SRDescription(SR.ButtonMouseOverBackColorDescr),
        EditorBrowsable(EditorBrowsableState.Always), 
        DefaultValue(typeof(Color), ""),
        ]
        public Color MouseOverBackColor {
            get { 
                return mouseOverBackColor;
            } 
            set { 
                if (mouseOverBackColor != value) {
                    mouseOverBackColor = value; 
                    owner.Invalidate();
                }
            }
        } 

    } 
 
    internal sealed class ApplicableToButtonAttribute : Attribute {
        public ApplicableToButtonAttribute() { 
        }
    }

    internal class FlatButtonAppearanceConverter : ExpandableObjectConverter { 

        // Don't let the property grid display the full type name in the value cell 
        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { 
            if (destinationType == typeof(string)) {
                return ""; 
            }

            return base.ConvertTo(context, culture, value, destinationType);
        } 

        // Don't let the property grid display the CheckedBackColor property for Button controls 
        public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) { 
            if (context != null && context.Instance is Button) {
                Attribute[] attributes2 = new Attribute[attributes.Length + 1]; 
                attributes.CopyTo(attributes2, 0);
                attributes2[attributes.Length] = new ApplicableToButtonAttribute();
                attributes = attributes2;
            } 

            return TypeDescriptor.GetProperties(value, attributes); 
        } 

    } 

}


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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FlatButtonAppearance.cs source code in C# .NET

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